has_class <- function(html, class) {
classes <- strsplit(xml2::xml_attr(html, "class"), " ")
purrr::map_lgl(classes, ~ any(class %in% .x))
}
tweak_class_prepend <- function(x, class) {
if (length(x) == 0) {
return(invisible())
}
cur <- xml2::xml_attr(x, "class")
xml2::xml_attr(x, "class") <- ifelse(is.na(cur), class, paste(class, cur))
invisible()
}
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.